del
Merge remote-tracking branch 'yinchangxin/master'
gem
Merge remote-tracking branch 'yinchangxin/master'
news model validates
announcement and link validates
contact model validates
键值对验证
sns
Revert "客户端校验"

This reverts commit 9bde0c74215b43b11ed4a86637077b75bda2f51c.
update gitignore
change top
fix